Question

A 5.25% solution of a substance is isotonic with a 1.5% solution of urea (molar mass = 60 g mol⁻¹) in the same solvent. If the densities of both the solutions are assumed to be equal to 1.0 g cm⁻³, molar mass of the substance will be
(a) 210.0 g mol⁻¹
(b) 90.0 g mol⁻¹
(c) 115.0 g mol⁻¹
(d) 105.0 g mol⁻¹.

Answer 1

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Here is your answer

Option B is the correct answer

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